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(No Model.) 4 Sheets-Sheet 1.

C. B. GOTTRELL. INKING APPARATUS POR PRINTING MACHINES. No. 472,666.

Patented Apr. 12, 1892.

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`4Sheets-Shee1.2. C. B. GOTTRELL.

INKING APPARATUS POR PRINTING MAGHlNES. No. 472,666. Paten'tedApr. l2,1892.

4 Sheets-Sheet 3.

(No Model.)

G. B. COTTRELL. INKING APPARATUS PoR PRINTING MACHINES.

Patented Apr. 12, 1892.

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mL Ti IIII (No Model.) 4 Sheets-Sheet 4. C. B. COTTRELL.

INKING APPARATUS POR PRINTING MACHINES. No. 472,666.4

Pate ed Apr. 12,1892.

UNITED STATES PATENT OFFICE.

CALVERT B. COTTRELL, OF VVESTERLY, RHODE ISLAND.

INKING APPARATUS FOR PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 472,666, dated April12, 1892.

' Application filed November 13, 1891. Serial No. 411,794. (No model.)

To @ZZ whom t may concern:

Be it known that I, CALVERT B. COTTRELL, of Westerly, in the county ofWashington and State of Rhode Island, have invented a new and usefulImprovement in Inking Apparatus for Rotary Printing-Machines, of whichthe following is a specification, reference being had to theaccompanying drawings.

This invention relates to in'king apparatus for that class of rotaryprinting-machines in which the forms or printing-plates are carried bycylinders. It is especially suitable for perfecting printing-machines ofthat class in which two form or plate cylinders are used, but is in partapplicable to machines having only a single form or plate cylinder.

The principal object of the improvement is to provide for the easyremoval of the inking apparatusfrom the form or plate cylinder so far asto make roombetween the inking-rollers and the plate-cylinder for a manto step in between them to perform such work as may be desired oneither.

The invention will now be described with reference to the drawings, inWhich- Figure l represents a vertical section of the lplate-cylinders,impression-cylinders, and inking apparatus of a perfecting machine,illustrating my invention. Fig.l 2 represents a side View of the lowerplate-cylinder and its inking apparatus and the driving mechanism forthe latter. Fig. 3 is a front View of one side of the inking apparatus,corresponding with Fig. 2. Fig. 4 is a horizontal sectional view of someof the details, taken in thc line .fr of Fig. 2. Fig. represents a sideview of the upper plate-cylinder, its impression-cylinder,the inkingapparatus for the said platecylinder, and the driving-gearing therefor.Fig. 6 represents avertical section of the lower inking apparatusremoved from its cylinder, showing, also, a device for the adjustment ofthe form-rollers. Fig. 7 is perspective View of some of the details ofFig. 6. Figs. 2 to 7 are on a larger scale than Fig. 1.

A is the main or side framing of the machine, erected on the base A andcontaining the bearings for the first and second form cylinders B B andthe first and second impression cylinders C C', all of which cylindersare shown in Fig. l. The cylinder B is also shown in Fig. 2, and thecylinders B and C are also shown in Fig. 5. These cylinders may begeared together in any suitable manner to run in the directionsindicated upon themby arrows.

E, Fig. l, is a roller for supplying the web F, which is to be printedon both sides, the said roller being supported in bearings in bracketsE* on the main framing, and the said web passing over a guide-roller Fand under a guide-roller F2 on its way to the cylind'ers B C. The rollerF is mounted in brackets secured to the main framing A, and

' the roller F2 is fitted to bearings in brackets on the upperink-roller carriage, which will be presently explained.

The several ink-rollers and cylinders and the fountain I for the iirstform cylinder B, which is arranged in the upper part of the machine, aresupported in a carriage G, which .is arranged to run on rollers c in twoparallel horitheir respective ink-rollers, are shownin full outline withtheir rollers in operative relation to their respective cylinders B B',and the said carriages and rollers are shown in dotted outline as runback from their respective cylinders.

The running back and forth of the upper roller-carriage G is providedfor by means of two toothed racks c, which are secured to opposite sidesof the said carriage and are geared with two pinions cl on ashaft e,which extends across the machine and is supported in bearings in theside framing A. The said shaft e is provided at one end with a crank f(see Fig. 5) for the purpose of turning,r it by hand to produce themovement of the carriage. The said shaft e is also furnished with atoothed locking-wheel which is to be engaged by alocking-pawl g, pivotedto the outside of the side framing for the purpose of locking thecarriage either in its operative, position or when it is run back fromits respective cylinder B.

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The running back and forth of the lower carriage G' is provided for, asillustrated in Figs. l, 2, S, and G, by means of two toothed racks c',two pinions d', and two intermediate gears h between the said pinions d'and racks c'. The racks c' are bolted, as shown in Fig. 3, to flangesfit, which are bolted to the tracks b', the said flanges f* containingbearings for the journals of the frictiou-roll ers a a. The pinions dare on the shaft e', which has its bearings iu the sides of theroller-carriage G', and theintermediate gears h between the said pinionsand the racks c' are fitted to turn freely on studs hf, secured in thesides of the carriage. The said shaft c is furnished at one end, asshown in Figs. 2 and 3, with a crank j", by which to turn it by hand toproduce the movement of the can riage.

To lock the carriage either in its operative position or when run back,there is provided on the shaft e', as shown in Fig. 2, a toe e* toengage with a hooked locking-lever i, fulcrulned at i* to one of thebracket-bearings Ai", (see Figs. 2, Li, and 5,) which are bolted to oneside of the framing A for the purpose of receiving the upright shaft Il,through which the necessary movements are given to soule of the rollersin the carriages G G', as will be hereinafter explained. The engatgementof this locking-lever 'i with the toe e* may be understood by referenceto Figs. 2 and 4, in the latter of which figures the toe e* is onlyshown in section. The engagement is maintained by a springj, whichconnects the said lever with the lnaeket-bearing A* until thedisengagement is effected by the pressman applying his hand to the saidlever e'.

The ink-rollers and cylinders in the upper carriage G are represented asconsisting of a fountain-roller 7i, a carrying-roller Z, a cylinder 7n,two ductors `n, n, a cylinder o, composition distributing-rollers p p,metal distributing or carrying rollers r1 q, vibrating rollers fr r, andform-rollers S s. The in k-rollers and cylinders in the lower carriage Gare represented as consisting of a fountain-roller k', a carriage-rollerZ', a cylinder on', two ductors n u', a cylinder o', compositiondistributing rollers p'p, metal distributing or carrying rollers q q',vibrating rollers r' o", and formrollers s' s. The front part of each ofthe carriages G G', in which part the form-rollers s s or s' s' andvibrating rollers rr or r' fr' are arranged, is of such are shape thatthe said rollers, when the carriage is run forward to its operativeposition, may come into proper relation to their respective cylinder.The bearings t t for the said form and vibrating rollers have stemswhich are fitted into socketsv v, which are bolted to the sides of thecarriages G G' and are adjustable in the said sockets by means ofset-screws a u to bring the axes of the said rollers exactly in properarcs concentric to their respective cylinders. As this method ofadjusting the form and vibrating rollers is substantially like theadjustment provided for such rollers in other priming-machines, it needsno further description here.

The fountain-rollers i; 7s', the cylinders m m and o o', and thevibrating rollers r r and yr' yr all have positive rotary motionimparted to them by gearing, but the ink-carrying rollers l Z deriverotary motion through contact with their respective fountain-roller 7oor /r' and cylinder m or m', and the form-rollers s s s s' derive motionthrough contact with their respective vibrating rollers 1'7", and theseveral distributing-rollers p p p p' and q q q q' derive motion throughcon tact with their respective cylinder o or o' or other contiguouspositively-driven rollers.

The vibrating rollers 7* r and r' fr' and cylinders o o are intended tohave their rotary motion given to them by being geared with a spur-gearon their respective form-cylinder B or B; but as such gearing is no partof my invention I have not thought it necessary to represent it.

The fountain-rollers 7c' and ink-cylinders m m are represented as drivenfrom the upright shaft Il, hereinbefore described, through twohorizontal shafts, of which one J Ji: is

shown in Fig. o and the other J' is shown in Fig. 2. The upperhorizontal shaft J J* is in two parts. its rear part J works in bearingsin brackets J2, secured to the exterior of one side of its carriage G,and the forward part Ji" works in a bearing in a bracket J, affixed tothe stationary side framing A. The two parts J J carry, respectively,the two members of a clutch Q, which is brought into engagement by therunning of the carriage G up to the cylinder B,bnt is thrown out ofengagement by the ruiming back of the said carriage. The lowerhorizontal shaft J', which is shown in Fig. 2, is supported in bracketsJ, secured on the exterior of one side of its carriage. The uprightshaft 1i is represented as receiving rotary motion from the secondform-cylinder E through bevel-gears K L, one on the shaft of the saidcylinder and thc other on the said shaft Il. The said shaftll givesrotary motion to the shaft J Jzi through bevel-gears M N, one on theupper end of the said shaft II and the other on the front end of saidshaft J Jii. The said shaft II gives rotary motion to the shaft Jthrough bevelgears M' N', one on the lower end of the said shaft Handthe other on the front end of the said shaft J. The bevel-gears M' N'are only in gear when the carriage G' is run upto the cylinder '3'. Whenthe carriage is run back, the gear N' goes with it and is disengagedfrom M. The shafts J Ji and J transmit rotary motion to their respectivefountainrollers 7a 7e' through endless screws O O on the rear ends ofthe said shafts gearing with worm-gears P P' on the shafts of the saidrollers. The cylinders m m' each receives rotary motion from itsrespective fountain-roller through agear 10011 the fountain-roller,gears TOO IIO

11 on the shaft of the cylinder, and intermediate gears 12, running onxed studs 13, as may be understood by reference to Fig. 6, Where thesaid gears 10 11.12 are shown in dotted outline.

The ductor-rollers n n of the upperl inking apparatus are carried by twoopposite sets of arms n* n* on a rock-shaft w, supported in bearings inthe sides of the said carriage G, and this rock-shaft has an arm 11,which is kept by a spring 15 in contact with a cam R on the part J ofthe shaft J J*, the said cam and spring serving to produce the rockingof the said rock-shaft in such a manner as to cause the twoductor-rollers to move to and fro between the ink-cylinders fm and 0,0neof the said rollers always being in Contact with one of the saidcylinders, while the other is in contact with the other of saidcylinders. The ductor-rollers of the lower inkiug apparatus aresimilarly carried in arms n* of a rock-shaft w in the lower carriage Gand are similarly operated by means of a cam R on the shaft J and aspring 15, acting upon an arm let of the said rock-shaft fw.

The horizontal shafts J J of the two inking apparatuses carry,respectively, two cams S S for producing' the longitudinal movement ofthe vibrating' rollers r r and 'r' r and inkcylinders o 0', the saidcams acting, respectively, on the arms 16 16 of two vertical rockshaftsT T', which are supported, respectively, as shown in Figs. 2, 3, and 5,in bearings 17 on the two carriagesGG the said rock-shafts beingfurnished with arms 18 18, which engage with grooved heads on the shaftsof their respective rollers r r and rr and cylinders o o.

`To facilitate the adjustment of the formrollers iny each carriage Gor Gwhile the carriage is moved back from its respective cylinder, as shownin dotted lines in Fig. 1,1 employ a templet, as may be understood byreference to Figs. 6 and 7. This templet consists of a shaft U, twomovable brackets or supportsV for supporting the :ends of said shaft,and the cylindrical sectors W, which are fast upon the said shaft, andthe faces of which, concentric with said shaft, are arcs conformingexactly with the arcs of the printing surfaces or plates on therespective formcylinder B or B. Only one of the said brackets andsectors is shown; but that is sufficient for illustration. Then theroller-carriage G or G is run back, the brackets V are secured to thesides of the said carriage by screws 19 in such position that the shaftU occupies a position relatively to the carriage precisely similar tothat which the shaft of the formcylinder occupies while the carriage isin operative position relatively to the cylinder. This position isdetermined by the position of the holes provided in the brackets V andcarriage for the screws 19; but the accuracy of the position may befurther assured by providing dowel-pins on the brackets to enter otherholes in the sides of the carriage, as is a common practice for insuringthe proper position of removable' parts of machinery. This templethaving been properly placed in the carriage, the bearings t of theseveral form-rollers s s or s s are adjusted by the screws u to bringall the said rollers into coutact with the sectors 1V, as indicated inFig. 6. The bearings of the vibrating rollers r r or r r anddistributing-rollers p q or p q are then adjusted to bring the saidrollers in proper relation to the form-rollers and to each other. Thetemplet is then to be removed from the carriage, and when the carriageis moved forward to its proper position relative to the form-cylinderall of the parts of the inking apparatus are in proper relation to thesaid cylinder for inking the form or plate thereon.

When the carriages G G and the complete inkin g apparatus thereincontained are moved back from their respective cylinders, as illustratedin dotted outline in Fig. 1, there is room for a man to get in betweenthe inking apparatus and the cylinders, and therefore not only can therollers be easily removed from or replaced inthe carriages, but facilityis afforded for doing such work as is necessary on the cylinder.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, with the two form-cylinders of a rotary perfectingprinting-machine and a stationary framing and bearings therein for saidcylinders, of a separate carriage and inking apparatus therein for eachcylinder' independently movable toward and from its respective cylinder,a shaft on each carriage for transmitting motion to rollers of itsrespective inking apparatus, a shaft on the stationary' framing inconstant gear with one of the cylinders, and gearing between thelastmentioned shaft and the two shafts on the movable carriages, allsubstantially as and for the purpose herein set forth.

2. The combination, with the two form-cylinders B B. and theirrespective inking apparat-us and separately-movable carriages G Gtherefor, of the rotary horizontal shafts J J and J one on each of saidcarriages, the cams S S', one on each of said shafts, the uprightrock-shafts T T, one on each of said carriages, the arms 16 on saidrock-shafts engaging with said cams, the arms 1S on the said rock-shaftsengaging with the vibrating inking-rollers, the upright shaft H inconstant gear with one of the said cylinders, the two bevel-gears M M onthe said shaft H, and the bevel-gears N N on the said horizontal shafts,all substantially as herein described, for producing the longitudinalmovement of the said rollers.

3. The combination, with the form-cylinder of a rotary printing-machine,afixed framing containing j ournal-bearings for said cylinder, anink-roller carriage movable' toward and from said cylinder, and twoink-cylinders 'in said carriage, of a rock-shaft in said carriage,

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mtos for n printngmmohine having n rotary form-oylimler and :L movablecarriage for said hiking apparatus, of :L templet consisting of a shaftand brackets for supporting the same on the said Carriage, andeonoentrieoylindricztl Sectors on the said shaft, the ares of whosefaces Correspond with the tros ol' the printingsurfztees of the saidcylinder, substantially as herein set forth.

CALVER'F B. COTTRELL. Titnessesz FREDK. HAYNES, GEORGE BARRY.

